Restructuring (Summary of Restructuring Charges (Gains)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	$ 0.5	$ 6.2	$ (3.7)
Previously Reported
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net			(3.8)
Severance
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.1	5.7	(1.0)
Other
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.4	0.5	(2.8)
Crane Payment Innovations
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.5	6.2	(0.9)
Crane Currency
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	(2.8)
2022 Restructuring
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.5	6.2	0.0
2022 Restructuring | Severance
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.1	5.7	0.0
2022 Restructuring | Other
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.4	0.5	0.0
2022 Restructuring | Crane Payment Innovations
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.5	6.2	0.0
2022 Restructuring | Crane Payment Innovations | Severance
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.1	5.7	0.0
2022 Restructuring | Crane Payment Innovations | Other
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.4	0.5	0.0
2020 Restructuring
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	(3.6)
2020 Restructuring | Severance
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	(0.8)
2020 Restructuring | Other
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	(2.8)
2020 Restructuring | Crane Payment Innovations
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	(0.8)
2020 Restructuring | Crane Payment Innovations | Severance
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	(0.8)
2020 Restructuring | Crane Payment Innovations | Other
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	0.0
2020 Restructuring | Crane Currency
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	(2.8)
2020 Restructuring | Crane Currency | Severance
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	0.0
2020 Restructuring | Crane Currency | Other
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	(2.8)
2017 Restructuring
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	(0.2)
2017 Restructuring | Severance
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	(0.2)
2017 Restructuring | Other
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	0.0
2017 Restructuring | Crane Payment Innovations
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	(0.2)
2017 Restructuring | Crane Payment Innovations | Severance
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.0	0.0	(0.2)
2017 Restructuring | Crane Payment Innovations | Other
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	$ 0.0	$ 0.0	$ 0.0